WO2018117989A1 - Unit dose cleaning product - Google Patents

Unit dose cleaning product Download PDF

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Publication number
WO2018117989A1
WO2018117989A1 PCT/TR2016/050524 TR2016050524W WO2018117989A1 WO 2018117989 A1 WO2018117989 A1 WO 2018117989A1 TR 2016050524 W TR2016050524 W TR 2016050524W WO 2018117989 A1 WO2018117989 A1 WO 2018117989A1
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WO
WIPO (PCT)
Prior art keywords
unit dose
cleaning product
water soluble
dose cleaning
shell
Prior art date
Application number
PCT/TR2016/050524
Other languages
French (fr)
Inventor
Nihat Toslu
Murat Uzumcu
Gulsum KAYA
Ahmet Ergun
Ilke SIMSEK TURAN
Original Assignee
Hayat Kimya San. A. Ş.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hayat Kimya San. A. Ş. filed Critical Hayat Kimya San. A. Ş.
Priority to PCT/TR2016/050524 priority Critical patent/WO2018117989A1/en
Publication of WO2018117989A1 publication Critical patent/WO2018117989A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C11D17/042Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
    • C11D17/045Multi-compartment
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11DDETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/04Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
    • C11D17/041Compositions releasably affixed on a substrate or incorporated into a dispensing means
    • C11D17/042Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
    • C11D17/044Solid compositions

Definitions

  • the field of the present invention relates to the cleaning composition products.
  • the field of the present invention relates to the cleaning composition products for automatic laundry or dishwashing machines.
  • the field of the present invention relates to cleaning products having preformed compartments covered by a water soluble film.
  • the field of the present invention relates to use of a water soluble unit dose cleaning product adapted to fit the dispenser of automatic washing machines.
  • the field of the present invention relates to a unit dose cleaning product incorporating detergent ingredients in different natural physical forms.
  • the field of the present invention relates to a unit dose cleaning product empowering the sequential delivery of ingredients at different times of washing process.
  • the present application relates to the specific compositions in order to fulfill all the said requirements and the needs in this particular field.
  • unit dose detergent attracts the attention of consumers due to precise dosing, avoiding of spills, wasteful overdosing and underdosing.
  • unit dose products prevent the contact of consumer hands with detersive or irritant ingredients of cleaning composition.
  • unit dose products foster the advantages of ease of handling, storage and transportation. Since these products are covered with water soluble films, the waste packaging amount is reduced which makes them environmentally friendly.
  • Unit dose products take their place in the market to date in various forms starting with the tablets. Manufacturers prepare the tablets with predetermined specific size and shape which enables the fitting of tablets to all washing machines. Although tablets offer the advantages of unit dose products, they suffer from the necessity of powder compaction step in manufacturing process. The powder compaction step may lead to the slow dissolution of active ingredients, the requirement of complex and expensive disintegrant systems, and the decrease of enzyme activity. Therefore, manufacturers seek for an alternative form of a unit dose product and thus, pouches take their place in the market.
  • the spectrum of laundry and dishwashing cleaning compositions is broad in terms of physical forms of the products which give an opportunity to the customers of a choice of detergent product they prefer to use.
  • Cleaning compositions supplied in plastic bottles are either in solid or liquid form. When the point comes to the compactness, meaning unit dose application, it has been a challenge to use different forms of ingredients together by keeping their physical states. Some of the ingredients in cleaning compositions are applied in solid forms due to their manufacturing and processing in solid form; their transportation and supply in solid form which requires extra processing steps to incorporate them in liquid compositions.
  • liquid ingredients in solid composition may alter the dissolution profiles; enhance moisture retention; develops flowability problems of the solid particles.
  • the situation is similar also in the case of perfumes.
  • These detergent ingredients are indispensable and overwhelming building blocks of cleaning compositions since each ingredient provides substantial cleaning benefit which can't be replaceable by using another one. Therefore, it is required to incorporate detergent ingredients together in a way as to achieve maximum cleaning performance by keeping their natural physical states.
  • Ingredients incorporated into cleaning compositions are chosen due to their specific functions which require the different delivery time during washing process. For example, perfumes must be delivered at a late stage of washing process in order to absorb malodor existing in the washing machine. As a result of early delivery of enzymes, they may degrade in cleaning environment and may not act properly due to the harsh washing conditions at early stage. Therefore, some ingredients need to be protected and some needed to be delivered at a late cleaning stage. Besides the importance of the protection of specific functions of some ingredients, their release at a proper stage of washing process increases their effectiveness and performance. As a result of this, the excessive use of enzymes and perfumes are reduced that reduces the cost of the application.
  • Successive delivery of particles can be achieved by modulating either the ingredients in preformed compartments or the water soluble film enveloping the unit dose cleaning product.
  • their sequential dissolution can be controlled via the alteration of degree of powder compression or particle size of the solid composition.
  • Another option for the successive release of ingredients is the modulation of the thickness and solubility profile of water soluble films.
  • the solubility profile of water soluble films can be controlled via pH, temperature, ionic strength, enzymes, etc. which may require chemical modifications of water soluble films and thus, it leads to the need for the necessity of difficult and expensive manufacturing and processing steps.
  • the easiest way to control sequential release of ingredients in preformed compartments is to use different water soluble film materials with different thicknesses.
  • An object of the present invention is to provide a unit dose cleaning product empowering successive release of ingredients in different physical states.
  • An object of the present invention is to provide a unit dose cleaning product empowering the sequential delivery of ingredients at different times of washing process.
  • An object of the present invention is to provide a unit dose cleaning product empowering the sequential delivery of ingredients at different times of washing process by using different water soluble film materials with different thicknesses.
  • consumers consider the physical appearance of the products as important. Since consumers desire to see the ingredients of the preformed compartments, manufacturers provide transparent, see-through unit dose products. Besides, consumers prefer to observe the presence of liquid composition. Thus, they press and apply force on the unit dose product in order to visualize the liquid inside the compartment. During pressing on the product, the film of liquid compartment can be damaged to release ingredients which lead to the degradation of solid particles. Therefore, the stiffness of the film material is important.
  • unit dose product or preformed compartment becomes soft which obstructs the production process since soft product or compartments may adhere to each other and the shape of them can be deformed. If the film of the product or preformed compartment is brittle than desired, cracks may occur upon applied force which leads to the release of the ingredients.
  • the physical appearance of unit dose products covered by water soluble film materials is affected by the moisture which weakens the structural integrity of products and thus, transportation and storage of these products become troublesome. When these products are stored in close proximity, they may tend to stick together which lead to rupturing or breaking of the films. Therefore, it is important to coat the surface of unit dose product film by using powders in order to provide excellent slip and anti-blocking properties.
  • the suitable powder can be selected from calcium carbonate, magnesium carbonate, clay, talc, silicic acid and kaolin.
  • carboxylated/sulphonated polymers are incorporated in automatic dishwashing solutions to improve cleaning, provide anti-filming and anti-spotting benefits on glass, plastic and metal substrates that is known from EP2025741 B1 , US5547612A. These polymers tends to have poor physical stability therefore, difficult to store, handle and process. Besides, these polymers may become glue- like material as a result of loss of its free-flowing property. Therefore, when carboxylated/sulfonated type polymers are used to prevent the leak of low molecular weight solvent, it does not function properly and thus, cleaning efficiency is reduced.
  • FIGURE 1 Side view of present invention unit dose cleaning product
  • FIGURE 2 Top view of present invention unit dose cleaning product
  • FIGURE 3 Cross view of present invention gelatin capsule
  • Unit dose cleaning product 2 Water soluble film shell of unit dose cleaning product
  • the present invention relates to a unit dose cleaning product which provides high product stability, good cleaning performance, decent shine and good odor profile via sequential delivery of ingredients which are incorporated in their different natural physical forms as sub- portions at different times of washing process by using different water soluble film materials with different thicknesses.
  • the present invention composition has overcome above mentioned problems by using different water soluble films having varying thickness to form unit dose cleaning product with high product stability.
  • the present invention composition empowers the sequential delivery of ingredients in different natural physical states at different times of washing process. This provides high product stability, good cleaning performance, decent shine and good odor profile.
  • the present invention cleaning composition allows the consumer to maintain using the product to its full extent to achieve high product stability, good cleaning performance, decent shine and good odor profile by facilitating a safer, environmentally friendly, effective, and inexpensive cleaning.
  • the present invention is a unit dose cleaning product having water soluble film shell for laundry or dishwashing.
  • the present invention relates to unit dose cleaning product providing high product stability, good cleaning performance, decent shine and good malodour removal from washing machines.
  • the present invention relates to unit dose cleaning product providing decent shine of the dishes via sequential delivery of ingredients.
  • the present invention relates to unit dose cleaning product incorporating detergent ingredients in different natural physical forms as sub-portions to achieve high product stability, good cleaning performance, decent shine and good odor profile.
  • the present invention relates to unit dose cleaning product empowering the sequential delivery of ingredients at different times of washing process by using different water soluble film materials with different thicknesses.
  • the present invention relates to unit dose cleaning product providing high product stability, good cleaning performance, decent shine and good odor profile via the utilization of the synergistic effect of detergent ingredients at different physical states.
  • the present invention relates to particulate cleaning product having above mentioned features allowing the consumers to maintain improved shine and malodor control efficiency via using the product to its full extent by facilitating an easy, effective, cost-effective and energy safer washing operations.
  • solid particles a. solid particles and b. at least one soft gel capsule which is in direct contact with solid particles comprising film material as shell and filling
  • the water soluble film shell i. in the first instance, the water soluble film shell
  • cleaning product and/or cleaning composition and/or detergent composition are used interchangeably and refers to an amount of a laundry detergent or dishwashing detergent which is sufficient for laundering, dishwashing, cleaning or washing operation implementing with automatic washing machines or dishwashers.
  • unit dose product and/or unit dose cleaning product are used interchangeably and refers in the context of the present invention to compact cleaning product containing cleaning compositions in different physical states either powder, liquid or paste in different compartments.
  • unit dose cleaning product of the present invention refers to the products containing at least two compartments.
  • sub-portion and/or preformed portions and/or compartment are used interchangeably and refer to the compartments of unit dose cleaning product.
  • the present invention provides a unit dose cleaning product in the form of a pouch and said unit dose cleaning product comprises water soluble preformed portions in the form of a capsule.
  • the unit dose cleaning product of the present invention involves plurality of sub-portions wherein at least one of the sub-portion may be in liquid and/or paste and/or gel and/or semisolid and/or wax form and at least one of the sub-portion is in solid and/or granule and/or powder and/or particulate and/or shaped form.
  • the sub-portions are prepared to be combined to form a complete detergent composition.
  • Sub-portions are covered with a water soluble film material and can be arranged in the pack randomly or precisely.
  • the present invention composition is prepared in that being capable of fitting to the dispensers of different laundry and dishwashing machine types with different geometry and shapes.
  • the unit dose product can be in rectangular, square, oblong, circle, semicircle, spheres, ovoids and hexagonal, round, square, elliptical and other 3-dimensional shapes having a curved face shape.
  • the sub-portions of the present invention can be same and/or different in size and shape which can be in rectangular, square, circle, semicircle, spheres, ovoids and hexagonal, round, square, ellustl other 3-dimensional shapes. These sub- portions can be same or distinctive in color, size, pattern, ornament and volume.
  • the sub- portions can be same and/or different in visual appearances as opaque and/or semi-opaque and/or transparent and/or translucent and/or semitransparent and these sub-portions can be same and/or different in size and internal volume.
  • the sub-portions can involve same and/or different ingredients and detersive formulations which packed together as sufficient for laundering, dishwashing, cleaning or washing operation.
  • the detersive ingredients are used in the formulations of sub-portions with same and/or different concentrations.
  • Sub-portions of present invention composition are covered by water soluble film material to form soft gel capsule with a film shell wherein said soft gel capsule film shell comprises alginic acid, dextrin, pectin, chitin, collagen, gelatin, zein, starch, chitosan and their salts, derivatives or mixtures thereof.
  • Said soft gel capsule film shell comprises preferably gelatin and alginic acid, more preferably gelatin, most preferably soft gelatin.
  • the sub-portions of the present invention are covered by a water soluble film having same and/or different film thickness to enable the sequential release of the ingredients.
  • the sub-portions of the present invention composition are referred with the term soft gel capsule.
  • the present invention unit dose product having water soluble film shell comprising at least one soft gel capsule wherein said soft gel capsules can be different in terms of shape, size, composition and form.
  • Unit dose cleaning product involves at least one soft gel capsule with film material as shell wherein said film materials of said soft gel capsules may be different.
  • a unit dose cleaning product of the present invention having water soluble film shell may involve solid particles comprising (a) bleaching agents, (b) builder agents and (c) surfactants.
  • Gelatin is a stiff, brittle material derived from collagen obtained from animal byproducts. It is a mixture of peptide and protein and prepared by collagen hydrolysis, reducing the cross linking by acid or base or enzymes. It dissolves in hot water whereas it does not dissolve well in cold water. It swells in presence of water and becomes gel.
  • Gelatin has a widespread use as gelling agent in food, cosmetics and pharmaceutical industry. Especially in pharmaceutical industry, capsules are made from gelatin in order to make them easier to swallow.
  • the present invention unit dose cleaning product comprising soft gel capsule with a film as shell comprising gelatin wherein said gelatin comprises the gelatin type with the bloom 80 -250, preferably 150 - 200, more preferably with the bloom around 180. Bloom refers to a test which is applied to measure the strength of a gel or gelatin.
  • gelatin capsule comprises polyol as plasticizer.
  • Preferred polyols are diols or triols, more preferred one is glycerin.
  • Glycerinized gelatins dissolve slowly.
  • Plasticizers are needed to soften and mobilize the gelatin structure to bring it in the form of a capsule with a proper mechanical strength as well. Insufficient use of plasticizer content causes brittle capsule which do not meet the processability, storage and transportation requirements. Such capsule may crack and burst thus, drain its content whereas excessive use of plasticizer content leads to raised softness which does not meet the mechanical strength requirements.
  • capsule should have the proficient brittleness and firmness which are required to protect it from burst when the pressure is exerted.
  • plasticizers prevents the settling of gelatin residues on the cleaned objects as well.
  • the use of the plasticizer affects the release characteristic of the capsule.
  • the type and content of the plasticizer plays a significant role in the release time adjustment.
  • used polyol content is within the range of 20 % to 50 % preferably 20 % - 30 %.
  • the gelatin capsule of the present invention can be tailored with combination of the content and type of the polyol for desired release time.
  • the present invention product provides a unit dose cleaning product having at least two compartments comprises as a gelatin capsule with different thicknesses which releases its content in a delayed manner.
  • the present invention product comprises a gelatin capsule with its filling as the first compartment, a solid cleaning composition as the second compartment and polymeric film preferably polyvinyl alcohol covering both first and second compartment.
  • a unit dose cleaning product of the present invention comprises water soluble film shell containing solid particles which are in powder, granule, shaped form or mixtures thereof.
  • a unit dose cleaning product of the present invention having soft gel capsule contains filling which is in liquid, gel, semi-solid, wax, paste form or mixtures thereof.
  • the present invention gelatin capsule has the release time within 15 minutes preferably within 10 minutes.
  • the delayed release time is characteristic for the present invention and can be tailored within the mentioned time range.
  • the need for delay may arise from such as perfume release which is inside the gelatin capsule.
  • An early release would cause degradation of the sensitive perfume composition molecules due to prolonged residence time in wash liquor. Since perfumes do not need to reside in wash liquor a delayed release is favorable.
  • nonionic surfactant which acts as an auxiliary agent for rinsing hence a delayed release is preferred in this case as well.
  • the present invention is a unit dose cleaning product comprising gelatin capsule with a film shell wherein said film has the thickness between 0.3 - 1 .5 mm, preferably between 0.5 mm - 1 .3 mm.
  • the lower limit of the thickness depends on the mechanical strength requirements.
  • the gelatin capsule of the present invention should meet the requirements of processability. These are pressure and friction applied onto capsule during manufacturing process. Moreover, the gelatin capsule should resist to some pressure for transportation, storage and handling processing.
  • the required lower limit for the present invention gelatin capsule wall thickness is at least 0.3 mm. This is in accordance with the pressure, processability, transportation and storage requirements to the regular capsule and gelatin capsule.
  • gelatin capsule wall thickness depends on release time and economic feasibility. The thicker the gelatin capsule wall the more time it will require to dissolve and release its content. The unnecessary use of thick gelatin walls does not affect the dissolution anymore and likewise, it becomes a financial burden. Besides a thick wall is going to consume the space which is needed for the compactness and content of the unit dose product.
  • gelatin capsule wall thickness is at most 1 .5 mm preferably at most 1 .3 mm. This is in accordance with the dissolution and economic feasibility concerns. After contacting with water, gelatin capsule starts to dissolve and becomes thin, then bursts and thus, release its content to the cleaning environment.
  • FIG.1 represents the unit dose cleaning product (1 ) is covered by a water soluble film shell (2).
  • This unit dose cleaning product (1 ) has preferably two compartments.
  • the gelatin capsule (3) comprising film material as shell (4) and filling (5) is the first compartment wherein said filling (5) in liquid form.
  • the solid cleaning composition (6) is the second compartment of unit dose cleaning product (1 ). Both compartments are covered together with a polymeric film material (2) preferably polyvinyl alcohol.
  • the unit dose cleaning product (1 ) of the present invention can be in rectangular, square, oblong, circle, semicircle, spheres, ovoids and hexagonal, round, square, elliptical and other 3-dimensional shapes having a curved face shape, preferably rectangular in shape as shown in FIG.
  • the gelatin capsule (3) of the present invention can be in rectangular, square, circle, semicircle, spheres, ovoids and hexagonal, round, square, ellipsoid and other 3-dimensional shapes, preferably ellipsoid or spherical in shape as shown in FIG. 3.
  • the gelatin capsule (3) of the present invention may contain perfumes, nonionic surfactants, rinsing agents and any other ingredients necessary for preparation of such compositions. Ingredients necessary to come into act at a later stage in the cleaning procedure are subject of the present invention.
  • polymeric materials may comprise polyvinyl alcohols, polyvinyl alcohol substituted with sulphate, carboxylate or mixtures thereof, polyvinyl pyrrolidone, polyalkylene oxides, polymers of acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic acids and salts, polyaminoacids or peptides, polyamides, polyacrylamide, copolymers of maleic/acrylic acids.
  • Preferred polymeric material (2) is polyvinyl alcohol.
  • Water soluble film shell material (2) of the unit dose cleaning product of the present invention is based on polyvinyl alcohol.
  • the unit dose cleaning products (1 ) of the present invention may be used for laundry and dishwashing purposes. By cleaning process, the presence of perfumes and bleaching agent indicates the need of a separation which is enabled with the present invention product.
  • Dishwashing composition of the present invention may comprise any ingredients like surfactants, builder, hydrotropes, solvents, preservatives, antimicrobials, buffering agents, salts, fragrances, perfume, foam booster and enzymes.
  • Laundry composition of the present invention comprise ingredients like builder, surfactants, corrosion inhibitor, additional alkali, perfume, bleaching agents, hydrotropes, solvents, preservatives, buffering agents, salts, softening agents, foam reducing agents, opacifying agents, dye transfer inhibitor, redeposition inhibitor, enzymes, and processing aids.
  • composition of the present invention comprises the following ingredients;
  • the present invention ensures effective bleaching and cleaning performance by the incorporation of percompounds.
  • Percompounds are oxygen-releasing peroxide compounds which are effective bleaching agents.
  • the white fabrics are needed to be treated with bleaching agents in order to prevent yellowing inherent especially to cotton yarns.
  • the preferred bleaching agent for laundering applications involves the use of hydrogen peroxide sources because it causes less textile fiber damage compared to many other peroxygen sources and it is less aggressive on fabric, enzymes and optical brighteners.
  • the preferred hydrogen peroxide sources for this invention can be chosen from peroxides and/or persalts.
  • the preferred bleaching source is persalt which could be added to the present invention by selecting from the group of perborates (e.g. perborate monohydrate, perborate tetrahydrate), percarbonates, peroxyhydrates, persilicates and persulphates. More preferably, percarbonates are particularly chosen due to (i) their high dissolution rate, (ii) concurrent generation of hydrogen peroxide and carbonate ions which favor the perhydrolysis by maintaining higher pH values.
  • Bleaching agents of the present invention compositions are included in the composition in the range of 1 % to 60 % by weight, varying with respect to the concentration or purpose of the compositions.
  • the preferred percarbonate source for the present invention composition is alkali metal salt of percarbonate. Preferably, sodium salts are preferred. Additionally, percarbonates are chosen as coated in order to improve their stability.
  • the detergent composition of the present invention involves the use of organic bleach activators for bleaching compounds since they do not show remarkable activity at lower temperatures.
  • Use of peroxy compounds in combination with activators results in the formation of peroxy acid which is the active species for bleaching. Since the activity of percompound is strongly dependent on temperature, bleach activators are used to activate bleaching agents to function properly at temperatures below 60°C. These bleach activators speed up the bleaching process so that bleaching can effectively take place at temperatures lower than that in the absence of them.
  • the bleach activators are perhydrolyzed to form a peracid as active bleaching species.
  • bleaching and whitening at warm wash temperatures are very critical in terms of textile care, cost and energy considerations.
  • the suitable bleach activator can be selected from the group of activators such that tetra acetyl ethylene diamine (TAED), nonanoyloxybenzene sulphonate (NOBS), sodium 4-(isononanoyloxy)benzenesulphonate (iso-NOBS).
  • the preferred bleach activator for the present invention is tetra acetyl ethylene diamine (TAED).
  • TAED speeds up the bleaching process by reacting with hydrogen peroxide released by sodium percarbonate to produce peroxyacetic acid whose bleaching efficiency is better than hydrogen peroxide, and a molecule of DAED (diacetyl ethylene diamine) which is no longer reactive.
  • the detergent compositions of the present invention comprises up to 3% TAED by weight of the total composition.
  • Surfactants lower surface tension of water, act as wetness agent which makes the removal of soil possible. Suitable surfactants for such use may be of anionic, cationic, nonionic and amphotheric in nature. Surfactants are used in the present invention in the range of 1 % to 50 %varying with respect to either the concentration or the purpose of the compositions.
  • Anionic surfactants used in the laundry compositions of the present invention comprises sulfate surfactants, linear alkylbenzene sulfonic acid, sodium lauryl ether sulfate, alpha olefin sulfonate, phosphate esters, sulfosuccinate surfactants, sodium dioctyl sulphosuccinate, sulfonate surfactants, alkyl benzene sulfonate, allylsulfate, sodium alkyl glyceryl ether sulfonate, alpha olefin sulfonate, linear alkyl benzene sulfonate, alcohol ether sulfate, dodecyl benzene sulfate, Alkyl ethoxy sulfonate, sodium lauryl ether sulfate, alkylethoxyphosphate, and mixtures thereof.
  • Cationic surfactants are generally used as fabric softeners. But addition of small amounts of cationic surfactant helps to the removal of oily stain in the present invention compositions.
  • Long chain quaternary ammonium compounds, cocoalkyl trimethyl ammonium methosulfate, lauryl amido propyl trimethyl ammonium methosulfate, cocoammonium methosulfate, cetyl trimethyl ammonium chloride are the compounds of choice.
  • Nonionic surfactants used in the present invention are preferably ethoxylated alcohols like linear alcohol ethoxylates, fatty alcohol alkoxylate, alkyl phenol ethoxylate octyl phenol ethoxylates, , alkyl amine ethoxylate, alkyl polyglycoside, fatty alkanolamide, amine polyglycol ether, imidazolines, fatty
  • Gelatine capsule filling contains fatty alcohol alkoxylate in the present invention product. It acts as surfactant and solvent for perfume compounds. Besides it decreases the surface tension of the wash liquor and prevents hanging of water droplets onto dishes which contributes heavily to the rinsability of the dishes. Thus, this brings about the improved shine on dishware.
  • Amphoteric surfactants used in the laundry compositions of the present invention comprise alkyl dimethyl betaine, alkyl amidopropylbetaine and alkyl amine oxide. Specifically N,N- dimethylacetic acid betaine, alkylamidepropyl-N,Ndimethyl-2-hydroxypropylsulfobetaine and alkylamidepropyl N, N-dimethylpropylsulfobetaine.
  • lauramidepropyl-N,N- dimethylacetic acid betaine myristamidepropyl-N, N-dimethylacetic acid betaine, alkylcarbobetaine, alkylsulfobetaine, alkylhydroxysulfobetaine, alkylamideamine-type betaine and alkylimidazoline-type betaine.
  • Cocamidepropyl-N, N-dimethylacetic acid betaine and the like are particularly preferable in terms of detergency, foam producing ability and rinsing property.
  • the detergent compositions can comprise one or more detergent enzymes up to 5% by weight of the total composition.
  • suitable enzymes are amylases, arabinosidases, ⁇ -glucanases, cellulases, chondroitinase, cutinases, esterases, hemicellulases, hyaluronidase, keratanases, laccase, ligninases, lipases, lipoxygenases, malanases, mannanases, oxidases, pectinases, pentosanases, peroxidases, phenoloxidases, phospholipases, proteases, pullulanases, reductases, tannases, and xylanases or mixtures thereof.
  • a preferred combination is a mixture of enzymes like protease, amylase, mannanase, cellulase and lipase.
  • Enzymes are preferably present in solid cleaning compositions due to stability problems in liquid environments. Enzymes in coated form can be added to the solid compositions containing bleach agent.
  • Perfumes are compounds having sometimes functional groups like aldehydes, esters, double bond, active hydroxy groups which are sensitive to degradation. Due to volatile nature of perfume, most of these compounds are in liquid form which makes them more prone to degradation. Basic agents and oxidizing agents such as bleaching agents are degrading perfume compounds. Therefore, these compounds should be kept separated from said components. This is achieved with the present invention specific gelatin capsule. With the present invention composition perfumes are delivered to the cleaning environment in a delayed manner. Perfume of any type (oil or encapsulated) can be added to cleaning compositions in order to provide a pleasant smell during and/or after the cleaning of soiled/stained surface by the consumer. The preferred amount of the perfume by weight of total composition is 0.1 - 3.0 %.
  • Builders are incorporated into cleaning compositions in order to soften the water, boost the detergency effect, inhibit the redeposition and achieve a suspension of the soil during washing process. They have a number of functions including softening, buffering, emulsifying and removal of multivalent cations from water. Builders help emulsify oily or greasy soil by breaking them up to tiny globules and keep it from settling back on the cleaned surface. Additionally, they are expected to contribute the notable cleaning performance by providing alkalinity necessary for washing process, by improving the adsorption capacity and thus in turn effectiveness of surfactants.
  • the detergent composition of the present invention comprises inorganic and organic builders wherein inorganic builders can be chosen from carbonates, silicates, disilicates, polysilicates, silicate-soda ash co-granules, zeolites whereas organic builders can be chosen from the groups of polycarboxylate polymers such as polyacrylic acid and their salts, modified polyacrylic acid and their salts, acrylic/maleic copolymers, maleic acid/olefin copolymers; monomeric polycarboxylates like citrates, gluconates, oxydisuccinates, glycerol mono-di-and trisuccinates, carboxymethyloxysuccinates, carboxy-methyloxymalonates, dipicolinates, hydroxyethyl iminodiacetates, alkyl-and alkenylmalonates and succinates; and sulphonated fatty acid salts.
  • the preferred inorganic and organic builders are present in alkali metal salt form, preferably sodium
  • the preferred builder systems of the present invention contain sodium carbonate, tri sodium citrate as inorganic builders and homo polymer of acrylic acid sodium salt and unsulfonated polycarboxylate polymer as organic builder.
  • the unit dose cleaning product of the present invention comprises sodium carbonate from 20.0 wt.-% to 60.0 wt. -%, preferably from 25.0 wt.-% to 50.0 wt.-% of total solid composition and tri sodium citrate from 10.0 wt.-% to 40.0 wt. -%, preferably from 15.0 wt.-% to 30.0 wt.- % of total solid composition.
  • the cleaning composition of the present invention comprises homo polymer of acrylic acid sodium salt from 0.1 wt.- % to 1 .0wt.-%, preferably from 0.3wt.-% to 0.6wt.-% of the total composition and unsulfonated polycarboxylate polymer from 4.0 wt.- % to 10.0 wt.-%, preferably from 4.5wt.-% to 9.5wt.-% of the total composition.
  • Phosphonates can be applied as builders or as descaling agents as a stabilizer for peroxide solutions. By this way, percarbonate sustain long term activity and stability thus in turn, enhances both efficiency and the strength of the cleaning during the washing process.
  • These stabilizers are thought to protect the peroxyacids against iron and copper like heavy metal catalyst decomposition. They improve the bleaching efficiency of the percompound and activator system by inhibiting deleterious side reaction which occurs between formed peracid and percompound in wash solution.
  • the peroxyacid compositions of the present invention can contain various chelating agents which function as stabilizers in addition to the aminophosphonates and aminocarboxylate chelators specified herein above.
  • Phosphonates can be selected from amino tris(methylene phosphonic acid) - ATMP, (1 - hydroxyethylidene) diphosphonic acid - HEDP, diethylenetriamine penta(methylene phosphonic acid) - DTPMP or their respective salts.
  • the preferred type of phosphonate in the present detergent compositions is HEDP tetra sodium salt (HEDP.Na).
  • Detergent composition of the present invention comprises phosphonate from 0.5wt.-% to 2.0 wt. -%, preferably from 0.8 wt. -% to 1 .8 wt. -% of the total composition. PREPERATION METHOD OF CLEANING COMPOSITION
  • EXAMPLE 1 Present Invention Unit Dose Dishwashing Cleaning Product Comprising Perfume and Nonionic Surfactant in Gelatin Capsule
  • solid composition of the present invention 41 .38 g of sodium carbonate, 25.0 g of tri sodium citrate anhydrous, 12.10 g of percarbonate, 1 .90 g of tetra acetylene ethylene diamine (TAED), 1 .97 g of hydroxy ethylidene diphosphonic acid tetra sodium salt (HEDP), 4.06 g of fatty alcohol, 0.20 g of zinc acetate, 0.32 g of homopolymer of acrylic acid and 9.40 g of unsulfonated polycarboxylate polymer were added to compose the solid composition which is completed with the addition of 3.50 g of enzymes. Composition was stirred for 20 min to make it homogeneous.
  • liquid composition For the preparation of liquid composition, 88.65 g of fatty alcohol C12-C14 alkoxylate and 1 .65 g of perfume were mixed for 20min to make the solution homogeneous.
  • the soft gel capsule is filled with 2.70 g of liquid composition.
  • the unit dose product of the present invention is prepared as follows. Firstly, back sheet of poly vinyl alcohol film is placed over the mould and the film has taken the shape of the mould through the application of vacuum. Then, gelatin capsule is placed into the hole of the mould which is prepared specific for the gelatin capsule. The rest of the mould is filled with the solid composition (18.0 g).
  • the unit dose cleaning product composition is enveloped thermally with the use of second poly vinyl alcohol film. Table 1 : Composition of unit dose cleaning product for automatic dishwashing operations
  • TED Tetraacetyleneethylenediamine
  • ACUSOL 420 NG (homopolymer of acrylic acid)
  • EXAMPLE 2 Present Invention Unit Dose Laundry Cleaning Product Comprising Perfume and Nonionic Surfactant in Gelatin Capsule
  • granular composition is completed with the addition of 1 6.0 g of sodium percarbonate, 2,0 g of zeolite, 1 .6 g of tetra acetyl ethylene diamine (TAED), 1 .40 g of enzyme, 2.0 g of defoamer, 10.0 g of sodium carbonate. Then, the composition is mixed for 20 min to make it homogeneous.
  • TAED tetra acetyl ethylene diamine
  • defoamer 10.0 g of sodium carbonate.
  • the composition is mixed for 20 min to make it homogeneous.
  • 83.40 g of nonionic A7 C14-C15 fatty alcohol and 16.60 g of perfume is mixed for 20min to make the solution homogeneous.
  • the soft gel capsule is filled with 2.70 g of this liquid composition.
  • the unit dose product of the present invention is prepared as follows; firstly, a poly vinyl alcohol film is placed over the mould, through the application of vacuum the film takes the shape of the mould. The mould has a pocket. Then, gelatin capsule is placed into the pocket of the mould which is prepared specific for the gelatin capsule. The rest of the mould is filled with the solid composition (18.0 g). The unit dose cleaning product composition is enveloped thermally with the use of second poly vinyl alcohol film.
  • Table 2 Composition of unit dose cleaning product for automatic laundering operations
  • the strength of gelatin is measured with bloom test which is a test to measure the strength of a gel or gelatin.
  • the test determines the weight (in grams) needed by a probe (normally with a diameter of 0.5 inch) to deflect the surface of the gel 4 mm without breaking it.
  • the result is expressed in Bloom (grades). It is usually between 30 and 300 Bloom. This method is most often used on soft gels.
  • a 6.67% gelatin solution is kept for 17-18 hours at 10°C prior to being tested.
  • the present invention gelatin capsule comprises the gelatin type with the bloom 80-250.
  • gelatin capsules containing same amount of ingredients (2.7 g) having different thicknesses are used to figure out the effect of thickness of the film upon dissolution.
  • the release profile of example 3, 4 and 5 were determined under same conditions. The experiments were performed 4 times and average of these results is determined.
  • Gelatin capsule filled with the composition is placed into a beaker of volume 600.0 mL containing 300.0 mL water at 40 °C. Release time of each capsule is determined under continuous stirring at 500 rpm with a magnetic stirrer bar having dimensions of 10.0 mm length and 6.0 mm diameter. The time at which the capsules dissociate is recorded.
  • Table 3 Dissolution time of gelatin capsules having different thicknesses
  • the thickness of the gelatin capsules affects the dissolution rate and release time of the ingredients. The thicker the gelatin capsule, the more time needed for the dissolution of the capsule and thus, the more time needed for the release of the ingredients.
  • washing tests are carried out in the same test conditions. Tests are conducted by using 100% cotton white terry towels which are cut equally.
  • Tests were carried out in automated (Miele) washing machine in a 109 min washing programme including main wash cycle of 49 min and rinsing of 20 min and the rest of the time for squeezing stages.
  • the detergent amount used in the washing programme was 21 g.
  • the main wash cycle was performed at 40°C.
  • the washed items were then hanged and dried at room temperature (22°C - 24°C) for 24 hours. Following the drying, the washed items were ironed and evaluated.
  • the evaluations are an average of ten washings each. Thereafter perfume performance of both washings is compared by smelling of wet towels according to Scheffe Panel Score Units on the following scale:
  • Comparative washing test results show that delayed release of the perfume prevents or delays the early degradation of perfume composition by reducing the prolonged residence time in wash liquor and thus, good odor profile on the washed items are obtained. Comparative Washing Test Results for Shining of dishware:
  • example 3, 4 and 5 are compared and washing tests are carried out in the same test conditions.
  • Tests are conducted by using dishware such as tea glass, water glass, tea plate, platter and bowl.
  • the shining performance of the unit dose cleaning product is determined by two step procedure. In the first step, the soils are prepared and then, the plates are soiled with the prepared soils. In the second step, the soiled plates are washed with unit dose cleaning composition.
  • the soils used for tests are minces meat, starch, porridge, egg-yolk and egg-milk. Tests were performed three times for each glass wares and the evaluations are an average of three runs for each of them.
  • the dish wares are soiled with specific soil types of prepared test soils. Washings were carried out in automated Bosch washing machine in a 205 min washing programme including main wash cycle of 120 min and rinsing of 45 min and the drying time of 45 min. The detergent amount used in the washing programme was 21 g. The main wash cycle was performed at 50°C.
  • Comparative washing test results show that delayed release of the nonionic surfactant decreases the surface tension of the wash liquor and prevents hanging of water droplets onto dishes which contributes heavily to the rinsability of the dishes thus, provides improved shine of dishware.
  • the unnecessary use of thick gelatin walls does not affect the dissolution anymore and thus, the use of thicker gelatin capsule does not affect the shining of dishware.
  • the use of gelatin capsule thicker than required becomes a financial burden. Besides a thick wall is going to consume the space which is needed for the compactness and content of the unit dose cleaning product.

Abstract

A unit dose cleaning product is prepared to achieve high product stability, good cleaning performance, decent shine and good odor profile by empowering the sequential delivery of ingredients which are incorporated in their different natural physical forms as sub- portions at different times of washing process by using different water soluble film materials, with different thicknesses. A unit dose cleaning product (1) having water soluble film shell (2), comprising a. solid particles (6) and b. at least one soft get capsule (3) which is in direct contact with solid particles (6) comprising film material as shell (4) and filling (5) characterized in that said unit dose cleaning product (1) dissolves i. in the first instance, the water soluble film shell (2) ii. in the second instance, the solid particles (6) iii. in the third instance, the soft gel capsules (3) and its filling (5) wherein said water soluble film shell (2) and said soft gel capsule film material (4) are different.

Description

UNIT DOSE CLEANING PRODUCT FIELD OF THE INVENTION
The field of the present invention relates to the cleaning composition products.
The field of the present invention relates to the cleaning composition products for automatic laundry or dishwashing machines.
The field of the present invention relates to cleaning products having preformed compartments covered by a water soluble film.
The field of the present invention relates to use of a water soluble unit dose cleaning product adapted to fit the dispenser of automatic washing machines. The field of the present invention relates to a unit dose cleaning product incorporating detergent ingredients in different natural physical forms.
The field of the present invention relates to a unit dose cleaning product empowering the sequential delivery of ingredients at different times of washing process.
Particularly the present application relates to the specific compositions in order to fulfill all the said requirements and the needs in this particular field.
BACKGROUND OF THE INVENTION
Through the advancements in technology, we have realized that time is the valuable thing we will ever have in this world. We will never either get a more time or recapture the time we have spent. In the light of this realization, people start to manage and especially save time even doing household chores so that we have even tried to save our time during washing of dishes and laundry with automatic machines. Till now, consumer products especially detergents are introduced into the market in durable plastic bottles which are thrown away after the product is finished. During laundering or dishwashing, consumer needs to measure the amount of detergent which may lead to spilling, underdosing or overdosing of the detergent whether it is in solid or liquid form. Consumers generally perceive the dosing process laborious. When the detergent is sprinkled during measurement, consumer has to clean it and spend more time than necessary for dosing of a detergent which brings about the spent of other cleaning equipment, money and time. During spill, consumer hands may contact with the detergent and that may lead to allergies, skin sensitization for people having sensitive skin. If the underdosing amount of detergent is measured, the cleaning efficiency and performance of the cleaning composition will be low which lead to incomplete removal of soils and thus, extra washing is required which brings about the fabric degradation, spent of extra detergent, money and time. In the case of overdosing, extra use of detergent may cause fabric degradation since it contains detersive ingredients. Besides the increased cost of the washing process, overdosing is critical in terms of environmental concerns. As a result, consumers wish both to avoid the spill, wasteful overdosing, inefficient underdosing of detergent and to minimize the waste packaging amount.
It is therefore an object of the present invention to provide a cleaning composition which eliminates the need of dosing by formulating it in a way as to involve all predetermined portions required for one washing operation as a unit dose product. The use of unit dose detergent attracts the attention of consumers due to precise dosing, avoiding of spills, wasteful overdosing and underdosing. Additionally, unit dose products prevent the contact of consumer hands with detersive or irritant ingredients of cleaning composition. Moreover, unit dose products foster the advantages of ease of handling, storage and transportation. Since these products are covered with water soluble films, the waste packaging amount is reduced which makes them environmentally friendly. Consumers are also dazzled by the convenience of shaped composition which brings about the ease of delivering of unit dose product either from a dispensing drawer or directly into the washing machine drum. Unit dose products take their place in the market to date in various forms starting with the tablets. Manufacturers prepare the tablets with predetermined specific size and shape which enables the fitting of tablets to all washing machines. Although tablets offer the advantages of unit dose products, they suffer from the necessity of powder compaction step in manufacturing process. The powder compaction step may lead to the slow dissolution of active ingredients, the requirement of complex and expensive disintegrant systems, and the decrease of enzyme activity. Therefore, manufacturers seek for an alternative form of a unit dose product and thus, pouches take their place in the market.
It is therefore an object of the present invention to provide a cleaning composition which eliminates the need of dosing by formulating it in a way to involve all predetermined portions required for one washing operation as a unit dose cleaning product in the form of a pouch. The spectrum of laundry and dishwashing cleaning compositions is broad in terms of physical forms of the products which give an opportunity to the customers of a choice of detergent product they prefer to use. Cleaning compositions supplied in plastic bottles are either in solid or liquid form. When the point comes to the compactness, meaning unit dose application, it has been a challenge to use different forms of ingredients together by keeping their physical states. Some of the ingredients in cleaning compositions are applied in solid forms due to their manufacturing and processing in solid form; their transportation and supply in solid form which requires extra processing steps to incorporate them in liquid compositions. As a result, their water-insolubility makes them difficult or expensive to incorporate them into liquid cleaning compositions. Detergents ingredients like enzymes, builders and bleaching agents can be used in limited amounts in cleaning compositions due to their stability, solubility and activity problems. On the other hand, some of the ingredients have to be applied in liquid form due to their manufacturing and processing in liquid form, their transportation and supply in liquid form which requires extra processing to incorporate them into solid compositions. As a result, their water-insolubility makes them difficult or expensive to incorporate them into solid cleaning compositions, too. Detergent ingredients like surfactants especially non-ionic surfactants are supplied and transported in liquid form. Besides, the application of liquid ingredients in solid composition may alter the dissolution profiles; enhance moisture retention; develops flowability problems of the solid particles. The situation is similar also in the case of perfumes. These detergent ingredients are indispensable and overwhelming building blocks of cleaning compositions since each ingredient provides substantial cleaning benefit which can't be replaceable by using another one. Therefore, it is required to incorporate detergent ingredients together in a way as to achieve maximum cleaning performance by keeping their natural physical states.
Ingredients incorporated into cleaning compositions are chosen due to their specific functions which require the different delivery time during washing process. For example, perfumes must be delivered at a late stage of washing process in order to absorb malodor existing in the washing machine. As a result of early delivery of enzymes, they may degrade in cleaning environment and may not act properly due to the harsh washing conditions at early stage. Therefore, some ingredients need to be protected and some needed to be delivered at a late cleaning stage. Besides the importance of the protection of specific functions of some ingredients, their release at a proper stage of washing process increases their effectiveness and performance. As a result of this, the excessive use of enzymes and perfumes are reduced that reduces the cost of the application. Successive delivery of particles can be achieved by modulating either the ingredients in preformed compartments or the water soluble film enveloping the unit dose cleaning product. In the case of solid particles, their sequential dissolution can be controlled via the alteration of degree of powder compression or particle size of the solid composition. Another option for the successive release of ingredients is the modulation of the thickness and solubility profile of water soluble films. The solubility profile of water soluble films can be controlled via pH, temperature, ionic strength, enzymes, etc. which may require chemical modifications of water soluble films and thus, it leads to the need for the necessity of difficult and expensive manufacturing and processing steps. The easiest way to control sequential release of ingredients in preformed compartments is to use different water soluble film materials with different thicknesses. Therefore, high product stability, good cleaning performance, decent shine and good odor profile can be achieved by the fostering of advantages of single compartment products with advantages of multi-compartmental products. An object of the present invention is to provide a unit dose cleaning product empowering successive release of ingredients in different physical states.
An object of the present invention is to provide a unit dose cleaning product empowering the sequential delivery of ingredients at different times of washing process.
An object of the present invention is to provide a unit dose cleaning product empowering the sequential delivery of ingredients at different times of washing process by using different water soluble film materials with different thicknesses. Other than technical benefits of unit dose cleaning products, consumers consider the physical appearance of the products as important. Since consumers desire to see the ingredients of the preformed compartments, manufacturers provide transparent, see-through unit dose products. Besides, consumers prefer to observe the presence of liquid composition. Thus, they press and apply force on the unit dose product in order to visualize the liquid inside the compartment. During pressing on the product, the film of liquid compartment can be damaged to release ingredients which lead to the degradation of solid particles. Therefore, the stiffness of the film material is important. If the film of the unit dose product or the preformed compartment f41m is less stiff than desired, unit dose product or preformed compartment becomes soft which obstructs the production process since soft product or compartments may adhere to each other and the shape of them can be deformed. If the film of the product or preformed compartment is brittle than desired, cracks may occur upon applied force which leads to the release of the ingredients. The physical appearance of unit dose products covered by water soluble film materials is affected by the moisture which weakens the structural integrity of products and thus, transportation and storage of these products become troublesome. When these products are stored in close proximity, they may tend to stick together which lead to rupturing or breaking of the films. Therefore, it is important to coat the surface of unit dose product film by using powders in order to provide excellent slip and anti-blocking properties. The suitable powder can be selected from calcium carbonate, magnesium carbonate, clay, talc, silicic acid and kaolin.
Ingredients especially liquid ones may leak from the compartment and migrate into solid composition which causes degradation of storage incompatible ingredients. US6995126B2 tries to solve leakage problem by forming a second seal on the pre-sealed compartment which is in different position to the first seal of the pre-sealed compartment. This strategy requires extra manufacturing and processing steps which tends to increase the cost of the production. Beside, water soluble film can be damaged during second seal formation which causes early degradation of incompatible ingredients and thus, reduced cleaning efficiency.
The leak of organic solvent from compartment is also a problem. Organic solvents can be applied in pouches in order to increase the flexibility and plasticity of water soluble films and thus, brittleness of the film is prevented or reduced. However, it has been recognized that the low molecular weight solvents may migrate from the compartment involving liquid composition into the solid composition which leads to the undesirable reaction between bleaching agents and bleach activator. This premature reaction causes the lowered levels of bleaching compounds and thus, reduced cleaning efficiency. EP2397539B1 tries to solve leak problem via the incorporation of polycarboxylate polymer which anticipates reduction of low molecular weight solvent migration. Normally, carboxylated/sulphonated polymers are incorporated in automatic dishwashing solutions to improve cleaning, provide anti-filming and anti-spotting benefits on glass, plastic and metal substrates that is known from EP2025741 B1 , US5547612A. These polymers tends to have poor physical stability therefore, difficult to store, handle and process. Besides, these polymers may become glue- like material as a result of loss of its free-flowing property. Therefore, when carboxylated/sulfonated type polymers are used to prevent the leak of low molecular weight solvent, it does not function properly and thus, cleaning efficiency is reduced.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGURE 1. Side view of present invention unit dose cleaning product
FIGURE 2. Top view of present invention unit dose cleaning product
FIGURE 3. Cross view of present invention gelatin capsule
Wherein
1 : Unit dose cleaning product 2: Water soluble film shell of unit dose cleaning product
3: Gelatin capsule
4: Soft gel capsule film shell
5: Filling of gelatin capsule
6: Solid particles
SUMMARY OF THE INVENTION
The present invention relates to a unit dose cleaning product which provides high product stability, good cleaning performance, decent shine and good odor profile via sequential delivery of ingredients which are incorporated in their different natural physical forms as sub- portions at different times of washing process by using different water soluble film materials with different thicknesses.
It is an object of the present invention to keep natural physical states of the detergent ingredients in a unit dose cleaning product without losing these ingredients' stability, activity and solubility characteristics.
It is an object of the present invention to provide a unit dose cleaning product incorporating detergent ingredients in different natural physical forms as sub-portions to achieve high product stability, good cleaning performance, decent shine and good odor profile.
It is further object of the present invention to provide a unit dose cleaning product incorporating water-insoluble solid ingredients in a composition involving liquid ingredients without the necessity of difficult and expensive manufacturing and processing steps.
It is further object of the present invention to provide a unit dose cleaning product incorporating liquid ingredients in a composition involving solid ingredients without the necessity of difficult and expensive manufacturing and processing steps.
The present invention composition has overcome above mentioned problems by using different water soluble films having varying thickness to form unit dose cleaning product with high product stability.
The present invention composition empowers the sequential delivery of ingredients in different natural physical states at different times of washing process. This provides high product stability, good cleaning performance, decent shine and good odor profile. The present invention cleaning composition allows the consumer to maintain using the product to its full extent to achieve high product stability, good cleaning performance, decent shine and good odor profile by facilitating a safer, environmentally friendly, effective, and inexpensive cleaning.
DISCLOSURE OF THE INVENTION
The present invention is a unit dose cleaning product having water soluble film shell for laundry or dishwashing. The present invention relates to unit dose cleaning product providing high product stability, good cleaning performance, decent shine and good malodour removal from washing machines.
The present invention relates to unit dose cleaning product providing decent shine of the dishes via sequential delivery of ingredients.
The present invention relates to unit dose cleaning product incorporating detergent ingredients in different natural physical forms as sub-portions to achieve high product stability, good cleaning performance, decent shine and good odor profile.
The present invention relates to unit dose cleaning product empowering the sequential delivery of ingredients at different times of washing process by using different water soluble film materials with different thicknesses. The present invention relates to unit dose cleaning product providing high product stability, good cleaning performance, decent shine and good odor profile via the utilization of the synergistic effect of detergent ingredients at different physical states.
The present invention relates to particulate cleaning product having above mentioned features allowing the consumers to maintain improved shine and malodor control efficiency via using the product to its full extent by facilitating an easy, effective, cost-effective and energy safer washing operations.
It is therefore an object of the present invention to provide a unit dose cleaning product having water soluble film shell, comprising
a. solid particles and b. at least one soft gel capsule which is in direct contact with solid particles comprising film material as shell and filling
characterized in that said unit dose cleaning product is starting to dissolve
i. in the first instance, the water soluble film shell
ii. in the second instance, the solid particles
iii. in the third instance, the soft gel capsules and its filling
wherein said water soluble film shell and said soft gel capsule film material are different.
The terms cleaning product and/or cleaning composition and/or detergent composition are used interchangeably and refers to an amount of a laundry detergent or dishwashing detergent which is sufficient for laundering, dishwashing, cleaning or washing operation implementing with automatic washing machines or dishwashers.
The terms unit dose product and/or unit dose cleaning product are used interchangeably and refers in the context of the present invention to compact cleaning product containing cleaning compositions in different physical states either powder, liquid or paste in different compartments. The term unit dose cleaning product of the present invention refers to the products containing at least two compartments. The term sub-portion and/or preformed portions and/or compartment are used interchangeably and refer to the compartments of unit dose cleaning product. The present invention provides a unit dose cleaning product in the form of a pouch and said unit dose cleaning product comprises water soluble preformed portions in the form of a capsule. The unit dose cleaning product of the present invention involves plurality of sub-portions wherein at least one of the sub-portion may be in liquid and/or paste and/or gel and/or semisolid and/or wax form and at least one of the sub-portion is in solid and/or granule and/or powder and/or particulate and/or shaped form. The sub-portions are prepared to be combined to form a complete detergent composition. Sub-portions are covered with a water soluble film material and can be arranged in the pack randomly or precisely.
The present invention composition is prepared in that being capable of fitting to the dispensers of different laundry and dishwashing machine types with different geometry and shapes. The unit dose product can be in rectangular, square, oblong, circle, semicircle, spheres, ovoids and hexagonal, round, square, elliptical and other 3-dimensional shapes having a curved face shape. The sub-portions of the present invention can be same and/or different in size and shape which can be in rectangular, square, circle, semicircle, spheres, ovoids and hexagonal, round, square, ellipsal other 3-dimensional shapes. These sub- portions can be same or distinctive in color, size, pattern, ornament and volume. The sub- portions can be same and/or different in visual appearances as opaque and/or semi-opaque and/or transparent and/or translucent and/or semitransparent and these sub-portions can be same and/or different in size and internal volume. The sub-portions can involve same and/or different ingredients and detersive formulations which packed together as sufficient for laundering, dishwashing, cleaning or washing operation. The detersive ingredients are used in the formulations of sub-portions with same and/or different concentrations. Sub-portions of present invention composition are covered by water soluble film material to form soft gel capsule with a film shell wherein said soft gel capsule film shell comprises alginic acid, dextrin, pectin, chitin, collagen, gelatin, zein, starch, chitosan and their salts, derivatives or mixtures thereof. Said soft gel capsule film shell comprises preferably gelatin and alginic acid, more preferably gelatin, most preferably soft gelatin. The sub-portions of the present invention are covered by a water soluble film having same and/or different film thickness to enable the sequential release of the ingredients. The sub-portions of the present invention composition are referred with the term soft gel capsule. The present invention unit dose product having water soluble film shell comprising at least one soft gel capsule wherein said soft gel capsules can be different in terms of shape, size, composition and form.
Packaging of the gelatin capsule into unit dose configuration is critical in order to prevent the disappearance of the capsules which can be distributed centrally, right or left side justified or combinations thereof. Besides, these gelatin capsules are configured to be beneath or above or in the midst of the solid composition or mixtures thereof, preferably beneath of the solid composition. Unit dose cleaning product involves at least one soft gel capsule with film material as shell wherein said film materials of said soft gel capsules may be different.
These sub-portions can be separate or conjoint with each other in a proper way. Sub- portions containing liquid, gel or paste compositions can be distributed over the solid composition which is packed together in a different water soluble film to form complete unit dose cleaning product. A unit dose cleaning product of the present invention having soft gel capsule with filling which may comprise non-ionic surfactant and perfume. A unit dose cleaning product of the present invention having water soluble film shell may involve solid particles comprising (a) bleaching agents, (b) builder agents and (c) surfactants.
Gelatin is a stiff, brittle material derived from collagen obtained from animal byproducts. It is a mixture of peptide and protein and prepared by collagen hydrolysis, reducing the cross linking by acid or base or enzymes. It dissolves in hot water whereas it does not dissolve well in cold water. It swells in presence of water and becomes gel.
Gelatin has a widespread use as gelling agent in food, cosmetics and pharmaceutical industry. Especially in pharmaceutical industry, capsules are made from gelatin in order to make them easier to swallow. The present invention unit dose cleaning product comprising soft gel capsule with a film as shell comprising gelatin wherein said gelatin comprises the gelatin type with the bloom 80 -250, preferably 150 - 200, more preferably with the bloom around 180. Bloom refers to a test which is applied to measure the strength of a gel or gelatin.
The present invention product, gelatin capsule comprises polyol as plasticizer. Preferred polyols are diols or triols, more preferred one is glycerin. Glycerinized gelatins dissolve slowly. Plasticizers are needed to soften and mobilize the gelatin structure to bring it in the form of a capsule with a proper mechanical strength as well. Insufficient use of plasticizer content causes brittle capsule which do not meet the processability, storage and transportation requirements. Such capsule may crack and burst thus, drain its content whereas excessive use of plasticizer content leads to raised softness which does not meet the mechanical strength requirements. Thus, capsule should have the proficient brittleness and firmness which are required to protect it from burst when the pressure is exerted. Besides excessive plasticizer content leads to faster dissolution since it acts as a solvent which is not desired by the present invention. Additionally, the use of plasticizers prevents the settling of gelatin residues on the cleaned objects as well. Besides, the use of the plasticizer affects the release characteristic of the capsule. The type and content of the plasticizer plays a significant role in the release time adjustment. For said purposes, used polyol content is within the range of 20 % to 50 % preferably 20 % - 30 %. The gelatin capsule of the present invention can be tailored with combination of the content and type of the polyol for desired release time.
In another aspect, the present invention product provides a unit dose cleaning product having at least two compartments comprises as a gelatin capsule with different thicknesses which releases its content in a delayed manner. The present invention product comprises a gelatin capsule with its filling as the first compartment, a solid cleaning composition as the second compartment and polymeric film preferably polyvinyl alcohol covering both first and second compartment. A unit dose cleaning product of the present invention comprises water soluble film shell containing solid particles which are in powder, granule, shaped form or mixtures thereof.
A unit dose cleaning product of the present invention having soft gel capsule contains filling which is in liquid, gel, semi-solid, wax, paste form or mixtures thereof.
The present invention gelatin capsule has the release time within 15 minutes preferably within 10 minutes. The delayed release time is characteristic for the present invention and can be tailored within the mentioned time range. The need for delay may arise from such as perfume release which is inside the gelatin capsule. An early release would cause degradation of the sensitive perfume composition molecules due to prolonged residence time in wash liquor. Since perfumes do not need to reside in wash liquor a delayed release is favorable. The same consideration is also valid for nonionic surfactant, which acts as an auxiliary agent for rinsing hence a delayed release is preferred in this case as well.
The present invention is a unit dose cleaning product comprising gelatin capsule with a film shell wherein said film has the thickness between 0.3 - 1 .5 mm, preferably between 0.5 mm - 1 .3 mm. The lower limit of the thickness depends on the mechanical strength requirements. The gelatin capsule of the present invention should meet the requirements of processability. These are pressure and friction applied onto capsule during manufacturing process. Moreover, the gelatin capsule should resist to some pressure for transportation, storage and handling processing. The required lower limit for the present invention gelatin capsule wall thickness is at least 0.3 mm. This is in accordance with the pressure, processability, transportation and storage requirements to the regular capsule and gelatin capsule.
For the upper limits of the gelatin capsule wall thickness depends on release time and economic feasibility. The thicker the gelatin capsule wall the more time it will require to dissolve and release its content. The unnecessary use of thick gelatin walls does not affect the dissolution anymore and likewise, it becomes a financial burden. Besides a thick wall is going to consume the space which is needed for the compactness and content of the unit dose product. The required higher limit for the present invention gelatin capsule wall thickness is at most 1 .5 mm preferably at most 1 .3 mm. This is in accordance with the dissolution and economic feasibility concerns. After contacting with water, gelatin capsule starts to dissolve and becomes thin, then bursts and thus, release its content to the cleaning environment. This fact ensures that the main wash cycle has already begun and continued for a period of time. Some of the active washing ingredients such as bleaching agents are already consumed in some extend and do not pose a threat for the sensitive ingredients of compartments covered by gelatin such as perfumes. Because perfumes are prone to oxidation and degradation. Its release in late stage of cleaning process will ensure its presence in higher quantity which will result in enhanced fragrance content of the cleaned objects. The late release of the non-ionic surfactants leads to decent shine on the glass, plastic and metal substrates.
Referring to the drawings, FIG.1 represents the unit dose cleaning product (1 ) is covered by a water soluble film shell (2). This unit dose cleaning product (1 ) has preferably two compartments. The gelatin capsule (3) comprising film material as shell (4) and filling (5) is the first compartment wherein said filling (5) in liquid form. The solid cleaning composition (6) is the second compartment of unit dose cleaning product (1 ). Both compartments are covered together with a polymeric film material (2) preferably polyvinyl alcohol. The unit dose cleaning product (1 ) of the present invention can be in rectangular, square, oblong, circle, semicircle, spheres, ovoids and hexagonal, round, square, elliptical and other 3-dimensional shapes having a curved face shape, preferably rectangular in shape as shown in FIG. 2. The gelatin capsule (3) of the present invention can be in rectangular, square, circle, semicircle, spheres, ovoids and hexagonal, round, square, ellipsoid and other 3-dimensional shapes, preferably ellipsoid or spherical in shape as shown in FIG. 3.
The gelatin capsule (3) of the present invention may contain perfumes, nonionic surfactants, rinsing agents and any other ingredients necessary for preparation of such compositions. Ingredients necessary to come into act at a later stage in the cleaning procedure are subject of the present invention. The present invention's unit dose cleaning product (1 ) having soft gel capsule (3) with filling (5) wherein said filling (5) comprises non-ionic surfactant and perfume.
All the compartments having same and/or different physical states are packed together with water soluble film (2) involving polymeric materials. Said polymeric materials may comprise polyvinyl alcohols, polyvinyl alcohol substituted with sulphate, carboxylate or mixtures thereof, polyvinyl pyrrolidone, polyalkylene oxides, polymers of acrylamide, acrylic acid, cellulose, cellulose ethers, cellulose esters, cellulose amides, polyvinyl acetates, polycarboxylic acids and salts, polyaminoacids or peptides, polyamides, polyacrylamide, copolymers of maleic/acrylic acids. Preferred polymeric material (2) is polyvinyl alcohol. Water soluble film shell material (2) of the unit dose cleaning product of the present invention is based on polyvinyl alcohol. The unit dose cleaning products (1 ) of the present invention may be used for laundry and dishwashing purposes. By cleaning process, the presence of perfumes and bleaching agent indicates the need of a separation which is enabled with the present invention product. Dishwashing composition of the present invention may comprise any ingredients like surfactants, builder, hydrotropes, solvents, preservatives, antimicrobials, buffering agents, salts, fragrances, perfume, foam booster and enzymes.
Laundry composition of the present invention comprise ingredients like builder, surfactants, corrosion inhibitor, additional alkali, perfume, bleaching agents, hydrotropes, solvents, preservatives, buffering agents, salts, softening agents, foam reducing agents, opacifying agents, dye transfer inhibitor, redeposition inhibitor, enzymes, and processing aids.
The composition of the present invention comprises the following ingredients;
BLEACHING AGENTS
The present invention ensures effective bleaching and cleaning performance by the incorporation of percompounds. Percompounds are oxygen-releasing peroxide compounds which are effective bleaching agents. For the laundering operations, the white fabrics are needed to be treated with bleaching agents in order to prevent yellowing inherent especially to cotton yarns.
The preferred bleaching agent for laundering applications involves the use of hydrogen peroxide sources because it causes less textile fiber damage compared to many other peroxygen sources and it is less aggressive on fabric, enzymes and optical brighteners.
The preferred hydrogen peroxide sources for this invention can be chosen from peroxides and/or persalts. Additionally, the preferred bleaching source is persalt which could be added to the present invention by selecting from the group of perborates (e.g. perborate monohydrate, perborate tetrahydrate), percarbonates, peroxyhydrates, persilicates and persulphates. More preferably, percarbonates are particularly chosen due to (i) their high dissolution rate, (ii) concurrent generation of hydrogen peroxide and carbonate ions which favor the perhydrolysis by maintaining higher pH values. Bleaching agents of the present invention compositions are included in the composition in the range of 1 % to 60 % by weight, varying with respect to the concentration or purpose of the compositions. The preferred percarbonate source for the present invention composition is alkali metal salt of percarbonate. Preferably, sodium salts are preferred. Additionally, percarbonates are chosen as coated in order to improve their stability.
BLEACH ACTIVATOR
The detergent composition of the present invention involves the use of organic bleach activators for bleaching compounds since they do not show remarkable activity at lower temperatures. Use of peroxy compounds in combination with activators results in the formation of peroxy acid which is the active species for bleaching. Since the activity of percompound is strongly dependent on temperature, bleach activators are used to activate bleaching agents to function properly at temperatures below 60°C. These bleach activators speed up the bleaching process so that bleaching can effectively take place at temperatures lower than that in the absence of them. The bleach activators are perhydrolyzed to form a peracid as active bleaching species. During laundering operations, bleaching and whitening at warm wash temperatures are very critical in terms of textile care, cost and energy considerations.
In the present invention compositions, the suitable bleach activator can be selected from the group of activators such that tetra acetyl ethylene diamine (TAED), nonanoyloxybenzene sulphonate (NOBS), sodium 4-(isononanoyloxy)benzenesulphonate (iso-NOBS). The preferred bleach activator for the present invention is tetra acetyl ethylene diamine (TAED). TAED speeds up the bleaching process by reacting with hydrogen peroxide released by sodium percarbonate to produce peroxyacetic acid whose bleaching efficiency is better than hydrogen peroxide, and a molecule of DAED (diacetyl ethylene diamine) which is no longer reactive. The detergent compositions of the present invention comprises up to 3% TAED by weight of the total composition.
SURFACTANTS
Surfactants lower surface tension of water, act as wetness agent which makes the removal of soil possible. Suitable surfactants for such use may be of anionic, cationic, nonionic and amphotheric in nature. Surfactants are used in the present invention in the range of 1 % to 50 %varying with respect to either the concentration or the purpose of the compositions.
Anionic surfactants used in the laundry compositions of the present invention comprises sulfate surfactants, linear alkylbenzene sulfonic acid, sodium lauryl ether sulfate, alpha olefin sulfonate, phosphate esters, sulfosuccinate surfactants, sodium dioctyl sulphosuccinate, sulfonate surfactants, alkyl benzene sulfonate, allylsulfate, sodium alkyl glyceryl ether sulfonate, alpha olefin sulfonate, linear alkyl benzene sulfonate, alcohol ether sulfate, dodecyl benzene sulfate, Alkyl ethoxy sulfonate, sodium lauryl ether sulfate, alkylethoxyphosphate, and mixtures thereof.
Cationic surfactants are generally used as fabric softeners. But addition of small amounts of cationic surfactant helps to the removal of oily stain in the present invention compositions. Long chain quaternary ammonium compounds, cocoalkyl trimethyl ammonium methosulfate, lauryl amido propyl trimethyl ammonium methosulfate, cocoammonium methosulfate, cetyl trimethyl ammonium chloride are the compounds of choice.
Nonionic surfactants used in the present invention are preferably ethoxylated alcohols like linear alcohol ethoxylates, fatty alcohol alkoxylate, alkyl phenol ethoxylate octyl phenol ethoxylates, , alkyl amine ethoxylate, alkyl polyglycoside, fatty alkanolamide, amine polyglycol ether, imidazolines, fatty alcools.
Gelatine capsule filling contains fatty alcohol alkoxylate in the present invention product. It acts as surfactant and solvent for perfume compounds. Besides it decreases the surface tension of the wash liquor and prevents hanging of water droplets onto dishes which contributes heavily to the rinsability of the dishes. Thus, this brings about the improved shine on dishware. Amphoteric surfactants used in the laundry compositions of the present invention comprise alkyl dimethyl betaine, alkyl amidopropylbetaine and alkyl amine oxide. Specifically N,N- dimethylacetic acid betaine, alkylamidepropyl-N,Ndimethyl-2-hydroxypropylsulfobetaine and alkylamidepropyl N, N-dimethylpropylsulfobetaine. Among them, lauramidepropyl-N,N- dimethylacetic acid betaine, myristamidepropyl-N, N-dimethylacetic acid betaine, alkylcarbobetaine, alkylsulfobetaine, alkylhydroxysulfobetaine, alkylamideamine-type betaine and alkylimidazoline-type betaine. Cocamidepropyl-N, N-dimethylacetic acid betaine and the like are particularly preferable in terms of detergency, foam producing ability and rinsing property. ENZYMES
The detergent compositions can comprise one or more detergent enzymes up to 5% by weight of the total composition. Examples of suitable enzymes are amylases, arabinosidases, β-glucanases, cellulases, chondroitinase, cutinases, esterases, hemicellulases, hyaluronidase, keratanases, laccase, ligninases, lipases, lipoxygenases, malanases, mannanases, oxidases, pectinases, pentosanases, peroxidases, phenoloxidases, phospholipases, proteases, pullulanases, reductases, tannases, and xylanases or mixtures thereof. A preferred combination is a mixture of enzymes like protease, amylase, mannanase, cellulase and lipase. Enzymes are preferably present in solid cleaning compositions due to stability problems in liquid environments. Enzymes in coated form can be added to the solid compositions containing bleach agent. PERFUMES
Perfumes are compounds having sometimes functional groups like aldehydes, esters, double bond, active hydroxy groups which are sensitive to degradation. Due to volatile nature of perfume, most of these compounds are in liquid form which makes them more prone to degradation. Basic agents and oxidizing agents such as bleaching agents are degrading perfume compounds. Therefore, these compounds should be kept separated from said components. This is achieved with the present invention specific gelatin capsule. With the present invention composition perfumes are delivered to the cleaning environment in a delayed manner. Perfume of any type (oil or encapsulated) can be added to cleaning compositions in order to provide a pleasant smell during and/or after the cleaning of soiled/stained surface by the consumer. The preferred amount of the perfume by weight of total composition is 0.1 - 3.0 %.
BUILDER SYSTEM
Builders are incorporated into cleaning compositions in order to soften the water, boost the detergency effect, inhibit the redeposition and achieve a suspension of the soil during washing process. They have a number of functions including softening, buffering, emulsifying and removal of multivalent cations from water. Builders help emulsify oily or greasy soil by breaking them up to tiny globules and keep it from settling back on the cleaned surface. Additionally, they are expected to contribute the notable cleaning performance by providing alkalinity necessary for washing process, by improving the adsorption capacity and thus in turn effectiveness of surfactants.
The detergent composition of the present invention comprises inorganic and organic builders wherein inorganic builders can be chosen from carbonates, silicates, disilicates, polysilicates, silicate-soda ash co-granules, zeolites whereas organic builders can be chosen from the groups of polycarboxylate polymers such as polyacrylic acid and their salts, modified polyacrylic acid and their salts, acrylic/maleic copolymers, maleic acid/olefin copolymers; monomeric polycarboxylates like citrates, gluconates, oxydisuccinates, glycerol mono-di-and trisuccinates, carboxymethyloxysuccinates, carboxy-methyloxymalonates, dipicolinates, hydroxyethyl iminodiacetates, alkyl-and alkenylmalonates and succinates; and sulphonated fatty acid salts. The preferred inorganic and organic builders are present in alkali metal salt form, preferably sodium salt form.
The preferred builder systems of the present invention contain sodium carbonate, tri sodium citrate as inorganic builders and homo polymer of acrylic acid sodium salt and unsulfonated polycarboxylate polymer as organic builder.
The unit dose cleaning product of the present invention comprises sodium carbonate from 20.0 wt.-% to 60.0 wt. -%, preferably from 25.0 wt.-% to 50.0 wt.-% of total solid composition and tri sodium citrate from 10.0 wt.-% to 40.0 wt. -%, preferably from 15.0 wt.-% to 30.0 wt.- % of total solid composition.
The cleaning composition of the present invention comprises homo polymer of acrylic acid sodium salt from 0.1 wt.- % to 1 .0wt.-%, preferably from 0.3wt.-% to 0.6wt.-% of the total composition and unsulfonated polycarboxylate polymer from 4.0 wt.- % to 10.0 wt.-%, preferably from 4.5wt.-% to 9.5wt.-% of the total composition.
PHOSPHONATES
Phosphonates can be applied as builders or as descaling agents as a stabilizer for peroxide solutions. By this way, percarbonate sustain long term activity and stability thus in turn, enhances both efficiency and the strength of the cleaning during the washing process.
These stabilizers are thought to protect the peroxyacids against iron and copper like heavy metal catalyst decomposition. They improve the bleaching efficiency of the percompound and activator system by inhibiting deleterious side reaction which occurs between formed peracid and percompound in wash solution.
The peroxyacid compositions of the present invention can contain various chelating agents which function as stabilizers in addition to the aminophosphonates and aminocarboxylate chelators specified herein above.
Phosphonates can be selected from amino tris(methylene phosphonic acid) - ATMP, (1 - hydroxyethylidene) diphosphonic acid - HEDP, diethylenetriamine penta(methylene phosphonic acid) - DTPMP or their respective salts.
The preferred type of phosphonate in the present detergent compositions is HEDP tetra sodium salt (HEDP.Na). Detergent composition of the present invention comprises phosphonate from 0.5wt.-% to 2.0 wt. -%, preferably from 0.8 wt. -% to 1 .8 wt. -% of the total composition. PREPERATION METHOD OF CLEANING COMPOSITION
Exemplary, non-limiting embodiments of the present invention are given below to provide a clear understanding. A person of ordinary skill in the art will recognize that other examples may be used without departing from the spirit and scope of the invention. EXAMPLE 1 : Present Invention Unit Dose Dishwashing Cleaning Product Comprising Perfume and Nonionic Surfactant in Gelatin Capsule
Preparation method
For the preparation of solid composition of the present invention, 41 .38 g of sodium carbonate, 25.0 g of tri sodium citrate anhydrous, 12.10 g of percarbonate, 1 .90 g of tetra acetylene ethylene diamine (TAED), 1 .97 g of hydroxy ethylidene diphosphonic acid tetra sodium salt (HEDP), 4.06 g of fatty alcohol, 0.20 g of zinc acetate, 0.32 g of homopolymer of acrylic acid and 9.40 g of unsulfonated polycarboxylate polymer were added to compose the solid composition which is completed with the addition of 3.50 g of enzymes. Composition was stirred for 20 min to make it homogeneous.
For the preparation of liquid composition, 88.65 g of fatty alcohol C12-C14 alkoxylate and 1 .65 g of perfume were mixed for 20min to make the solution homogeneous. The soft gel capsule is filled with 2.70 g of liquid composition.
The unit dose product of the present invention is prepared as follows. Firstly, back sheet of poly vinyl alcohol film is placed over the mould and the film has taken the shape of the mould through the application of vacuum. Then, gelatin capsule is placed into the hole of the mould which is prepared specific for the gelatin capsule. The rest of the mould is filled with the solid composition (18.0 g). The unit dose cleaning product composition is enveloped thermally with the use of second poly vinyl alcohol film. Table 1 : Composition of unit dose cleaning product for automatic dishwashing operations
Figure imgf000019_0001
Sodium percarbonate 12,10
Tetraacetyleneethylenediamine (TAED) 1 ,90
Hydroxy ethylidene diphosphonic acid tetrasodium (HEDP) 1 ,97
Enzyme mixture (protease + amylase) 3,50
Fatty Alcohol - cetostearyl alcohol 4,06
Zinc Acetate 0,20
ACUSOL 420 NG (homopolymer of acrylic acid) 0,32
Sokalan CP 42 unsulfonated polycarboxylate polymer 9,40
GELATINE CAPSULE SHELL
Glycerine 4,00
Gelatine bloom 180 2,00
Water 4,00
LIQUID PART (first compartment)
Fatty alcohol C12-C14 alkoxylate 88,65
Perfume 1 ,65
EXAMPLE 2: Present Invention Unit Dose Laundry Cleaning Product Comprising Perfume and Nonionic Surfactant in Gelatin Capsule
For the slurry formation, 14.58 g linear alkyl benzene sulphonate is dissolved in water (3.80 g) and converted to its sodium salt (LABSA.Na) by addition of equimolar amount of 3.78 g of 49% NaOH (aq) solution forming 15.0 g of LABSA.Na. 0.5 g of sodium salt of diethylenetriamine penta(methylene phosphonic acid), 0.5 g of carboxymethyl cellulose (CMC), 0,02 of optix, 7.0 g of sodium silicate, 15.0 g sodium carbonate, 1 .70 g of acrylic acid homopolymer and sodium sulfate is added to complete total weight of the detergent composition to 100.0 g. The resultant mixture is stirred for 20 min. Obtained mixture is dried in the oven at 200 °C - 300°C for 6 hours. The dried composition is crumbled to obtain granular composition.
In the post addition part, granular composition is completed with the addition of 1 6.0 g of sodium percarbonate, 2,0 g of zeolite, 1 .6 g of tetra acetyl ethylene diamine (TAED), 1 .40 g of enzyme, 2.0 g of defoamer, 10.0 g of sodium carbonate. Then, the composition is mixed for 20 min to make it homogeneous. For the preparation of liquid composition, 83.40 g of nonionic A7 C14-C15 fatty alcohol and 16.60 g of perfume is mixed for 20min to make the solution homogeneous. The soft gel capsule is filled with 2.70 g of this liquid composition.
The unit dose product of the present invention is prepared as follows; firstly, a poly vinyl alcohol film is placed over the mould, through the application of vacuum the film takes the shape of the mould. The mould has a pocket. Then, gelatin capsule is placed into the pocket of the mould which is prepared specific for the gelatin capsule. The rest of the mould is filled with the solid composition (18.0 g). The unit dose cleaning product composition is enveloped thermally with the use of second poly vinyl alcohol film.
Table 2: Composition of unit dose cleaning product for automatic laundering operations
Figure imgf000021_0001
Nonionic A7 C14-C15 fatty alcohol 83,40
Perfume 16,60
PREPARATION OF GELATIN CAPSULES
Example 3: Preparation of Gelatin Capsules with film shell thickness of 0.8 mm
40 parts in weight of gelatin of type Gelatin Bloom 180 is mixed with 20 parts of glycerin and 40 parts of water at 60°C. With Capplus Technologies Softgel Capsule machine, the capsule is formed with 0.8 mm film thickness and sealed at 35-43°C and filled with liquid part of the example 1 . The prepared soft gel capsules are dried with dry air. Example 4: Preparation of Gelatin Capsules with film shell thickness of 1.0 mm
40 parts in weight of gelatin of type Gelatin Bloom 180 is mixed with 20 parts of glycerin and 40 parts of water at 60°C. With Capplus Technologies Softgel Capsule machine, the capsule is formed with 1 .0 mm film thickness and sealed at 35-43°C and filled with liquid part of the example 1 . The prepared soft gel capsules are dried with dry air.
Example 5: Preparation of Gelatin Capsules with film shell thickness of 1.2 mm
40 parts in weight of gelatin of type Gelatin Bloom 180 is mixed with 20 parts of glycerin and 40 parts of water at 60°C. With Capplus Technologies Softgel Capsule machine, the capsule is formed with 1 .2 mm film thickness and sealed at 35-43°C and filled with liquid part of the example 1 . The prepared soft gel capsules are dried with dry air.
Example 6: Preparation of Particulate Cleaning Composition for Automatic Laundering Operations
The same procedure with same amount of agents as in example 2 is applied except nonionic and perfume are not applied within the gelatin capsule but in laundry composition.
MEASUREMENTS, TEST and EVLUATION METHODS
BLOOM TEST: Gelatin Strength
The strength of gelatin is measured with bloom test which is a test to measure the strength of a gel or gelatin. The test determines the weight (in grams) needed by a probe (normally with a diameter of 0.5 inch) to deflect the surface of the gel 4 mm without breaking it. The result is expressed in Bloom (grades). It is usually between 30 and 300 Bloom. This method is most often used on soft gels. To perform the Bloom test on gelatin, a 6.67% gelatin solution is kept for 17-18 hours at 10°C prior to being tested. The present invention gelatin capsule comprises the gelatin type with the bloom 80-250.
RELEASE TEST of GELATIN CAPSULE
The gelatin capsules containing same amount of ingredients (2.7 g) having different thicknesses are used to figure out the effect of thickness of the film upon dissolution. The release profile of example 3, 4 and 5 were determined under same conditions. The experiments were performed 4 times and average of these results is determined. Gelatin capsule filled with the composition is placed into a beaker of volume 600.0 mL containing 300.0 mL water at 40 °C. Release time of each capsule is determined under continuous stirring at 500 rpm with a magnetic stirrer bar having dimensions of 10.0 mm length and 6.0 mm diameter. The time at which the capsules dissociate is recorded. Table 3: Dissolution time of gelatin capsules having different thicknesses
Figure imgf000023_0001
The thickness of the gelatin capsules affects the dissolution rate and release time of the ingredients. The thicker the gelatin capsule, the more time needed for the dissolution of the capsule and thus, the more time needed for the release of the ingredients.
RELEASE TEST of UNIT DOSE PRODUCT
The present invention unit dose cleaning product prepared according to example 1 having gelatin capsule film shell with the thickness of 1 .2 mm which is prepared according to example 5, has been placed into a beaker of volume 600.0 mL containing 300.0 mL water at 40 °C. The mixture is stirred at 500 rpm with a magnetic stirrer bar having dimensions of 10.0 mm length and 6.0 mm diameter. After 30 seconds, water soluble film shell of unit dose cleaning product (2) is dissolved and then solid particles are released. Gelatin capsule film shell having 1 .2 mm thickness is dissolved and gelatin capsule filling is released into the water after additional stirring of 7 minutes.
Comparative Washing Test Results for Perfume Permanence:
For the assessment of perfume permanence of unit dose cleaning composition of the example 2 product in comparison with the particulate cleaning composition of the example 6 product, washing tests are carried out in the same test conditions. Tests are conducted by using 100% cotton white terry towels which are cut equally.
Tests were carried out in automated (Miele) washing machine in a 109 min washing programme including main wash cycle of 49 min and rinsing of 20 min and the rest of the time for squeezing stages. The detergent amount used in the washing programme was 21 g. The main wash cycle was performed at 40°C. The washed items were then hanged and dried at room temperature (22°C - 24°C) for 24 hours. Following the drying, the washed items were ironed and evaluated. The evaluations are an average of ten washings each. Thereafter perfume performance of both washings is compared by smelling of wet towels according to Scheffe Panel Score Units on the following scale:
0 No difference
1 I think this is better
2 I know this is a little better
3 I know this is much better
4 I know this is very much better
Table 4: Comparative Scheffe values of Washing Results of Example 2 and Example 6 for Perfume Permanence
Figure imgf000024_0001
Comparative washing test results show that delayed release of the perfume prevents or delays the early degradation of perfume composition by reducing the prolonged residence time in wash liquor and thus, good odor profile on the washed items are obtained. Comparative Washing Test Results for Shining of dishware:
For the assessment of shining performance of unit dose cleaning product of the present invention, example 3, 4 and 5 are compared and washing tests are carried out in the same test conditions. Tests are conducted by using dishware such as tea glass, water glass, tea plate, platter and bowl. The shining performance of the unit dose cleaning product is determined by two step procedure. In the first step, the soils are prepared and then, the plates are soiled with the prepared soils. In the second step, the soiled plates are washed with unit dose cleaning composition. The soils used for tests are minces meat, starch, porridge, egg-yolk and egg-milk. Tests were performed three times for each glass wares and the evaluations are an average of three runs for each of them.
Thereafter shining performance of the washings with example 3, 4 and 5 products are compared according to visual evaluation of droplet presence on the dishes with following scale:
1 I think there are more droplets
2 I know there is a little more droplets
3 I know there is a droplet
4 No droplet
Automatic Dishwashing Process:
The dish wares are soiled with specific soil types of prepared test soils. Washings were carried out in automated Bosch washing machine in a 205 min washing programme including main wash cycle of 120 min and rinsing of 45 min and the drying time of 45 min. The detergent amount used in the washing programme was 21 g. The main wash cycle was performed at 50°C.
Table 4: Comparative Washing Results of Example 3, 4 and Example 5 for Shining
Performance
Figure imgf000025_0001
Comparative washing test results show that delayed release of the nonionic surfactant decreases the surface tension of the wash liquor and prevents hanging of water droplets onto dishes which contributes heavily to the rinsability of the dishes thus, provides improved shine of dishware. However, the unnecessary use of thick gelatin walls does not affect the dissolution anymore and thus, the use of thicker gelatin capsule does not affect the shining of dishware. In fact, the use of gelatin capsule thicker than required becomes a financial burden. Besides a thick wall is going to consume the space which is needed for the compactness and content of the unit dose cleaning product.

Claims

1. A unit dose cleaning product (1 ) having water soluble film shell (2), comprising a. solid particles (6) and
b. at least one soft gel capsule (3) which is in direct contact with solid particles (6) comprising film material as shell (4) and filling (5)
characterized in that said unit dose cleaning product (1 ) dissolves
i. in the first instance, the water soluble film shell (2)
ii. in the second instance, the solid particles (6)
iii. in the third instance, the soft gel capsules (3) and its filling (5) wherein said water soluble film shell (2) and said soft gel capsule film material (4) are different.
2. A unit dose cleaning product (1 ) having water soluble film shell (2) comprising at least one softgel capsule (3) according to claim 1 , wherein said soft gel capsules
(3) may be different in terms of shape, size, composition and form.
3. A unit dose cleaning product (1 ) having water soluble film shell (2) comprising at least one softgel capsule (3) with film material as shell (4) according to claim 1 , wherein said softgel capsule film material shell (4) may be different.
4. A unit dose cleaning product (1 ) having water soluble film shell (2) according to claim 1 , wherein said water soluble film shell material (2) is based on polyvinyl alcohol.
5. A unit dose cleaning product (1 ) having water soluble film shell (2) comprising solid particles (6) according to claim 1 , wherein said solid particles (6) are in powder, granule, shaped form or mixtures thereof.
6. A unit dose cleaning product (1 ) having softgel capsule (3) with filling (5) according to claim 1 , wherein said filling (5) is in liquid, gel, semi-solid, wax, paste form or mixtures thereof.
7. A unit dose cleaning product (1 ) comprising softgel capsule (3) with a film shell
(4) according to claim 1 , wherein said film shell (4) comprises alginic acid, dextrin, pectin, chitin, collagen, gelatin, zein, starch, chitosan and their salts, derivatives or mixtures thereof.
8. A unit dose cleaning product (1 ) comprising softgel capsule (3) with a film shell (4) according to claim 7, wherein said softgel capsule film shell (4) comprises preferably gelatin and alginic acid, more preferably gelatin.
9. A unit dose cleaning product (1 ) comprising softgel capsule (3) with a film shell (4) comprising gelatin according to claim 8, wherein the gelatin is of 80-250 preferably 150-200 bloom type.
10. A unit dose cleaning product (1 ) comprising softgel capsule (3) with a film shell (4) according to claim 8, wherein said softgel capsule film shell (4) has the thickness of 0.3 to 1 .5 mm, preferably 0.5 to 1 .3 mm.
11. A unit dose cleaning product (1 ) having softgel capsule (3) with filling (5) according to claim 6A wherein said filling (5) comprises non-ionic surfactant and perfume.
12. A unit dose cleaning product (1 ) having water soluble film shell (2) comprising solid particles (6) according to claim 1 , wherein said solid particles (6) comprise (a) bleaching agents, (b) builder agents and (c) surfactants.
13. A unit dose cleaning product (1 ) having water soluble film shell (2) according to claim 1 , wherein said unit dose cleaning product (1 ) is a laundry or dishwashing cleaning product.
PCT/TR2016/050524 2016-12-23 2016-12-23 Unit dose cleaning product WO2018117989A1 (en)

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547612A (en) 1995-02-17 1996-08-20 National Starch And Chemical Investment Holding Corporation Compositions of water soluble polymers containing allyloxybenzenesulfonic acid monomer and methallyl sulfonic acid monomer and methods for use in aqueous systems
US6448212B1 (en) * 1999-07-09 2002-09-10 Henkel Kommanditgesellschaft Auf Aktien Laundry/dishwasher detergent portion
US20020187910A1 (en) * 2001-05-14 2002-12-12 The Procter & Gamble Company Cleaning product
US20050205574A1 (en) * 2002-11-15 2005-09-22 Alexander Lambotte Water-soluble portion packaging with a filling
US6995126B2 (en) 2000-04-28 2006-02-07 The Procter & Gamble Company Pouched compositions
US20100029535A1 (en) * 2003-03-11 2010-02-04 Reckitt Benckiser N.V. Package Comprising a Detergent Composition
EP2025741B1 (en) 2007-08-16 2012-04-18 The Procter & Gamble Company Process for making a detergent composition
EP2397539B1 (en) 2010-06-15 2013-03-27 The Procter & Gamble Company Multi-compartment pouch

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5547612A (en) 1995-02-17 1996-08-20 National Starch And Chemical Investment Holding Corporation Compositions of water soluble polymers containing allyloxybenzenesulfonic acid monomer and methallyl sulfonic acid monomer and methods for use in aqueous systems
US6448212B1 (en) * 1999-07-09 2002-09-10 Henkel Kommanditgesellschaft Auf Aktien Laundry/dishwasher detergent portion
US6995126B2 (en) 2000-04-28 2006-02-07 The Procter & Gamble Company Pouched compositions
US20020187910A1 (en) * 2001-05-14 2002-12-12 The Procter & Gamble Company Cleaning product
US20050205574A1 (en) * 2002-11-15 2005-09-22 Alexander Lambotte Water-soluble portion packaging with a filling
US20100029535A1 (en) * 2003-03-11 2010-02-04 Reckitt Benckiser N.V. Package Comprising a Detergent Composition
EP2025741B1 (en) 2007-08-16 2012-04-18 The Procter & Gamble Company Process for making a detergent composition
EP2397539B1 (en) 2010-06-15 2013-03-27 The Procter & Gamble Company Multi-compartment pouch

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